L E Johnston1. Show Affiliations » 1. Department of Orthodontics amd Pediatric Dentistry, University of Michigan 48109-1078, USA. lejjr@umich.edu
Abstract
Mesh： See more » Controlled Clinical Trials as TopicDental Research/methodsEvidence-Based MedicineHumansOrthodontics, Corrective/methodsRetrospective StudiesSelection Bias
Year: 2002 PMID： 12218201 DOI： 10.1093/ortho/29.3.221
Source DB: PubMed Journal: J Orthod ISSN： 1465-3125